Binding post



April 28, 1925.

A. SMITH BINDING POST Filed May 1922 I O r A. 5 hj Afiorneys Patented Apr. 28, 1925.

UNITED STATES PATENT OFFICE.

OSCAR A. SMITH, or EAST CLEVELAND, 01110, AssieNon T0 .rnn'na'rrolur. Acme comm, or cnnvnpann, oHIo, A CORPORATION or onto;

nmnme rosr;

Application filed Kay 2,

To all whom it may concern:

Be it known that I, OSCAR A SMITH, a citizen of the United States, residing at East Cleveland, in the. county of C uyahoga and.

' manufacture, and which will also be eflicient and serviceable in use.

A further object of this invention is to provide a binding post of the general type wherein a gripping or clamping slide is reciprocated in a channel or slot in the binding post for the purpose of holding a conductor, and in which the slide member'is reciprocated by means of a rotatable'cap which is held from substantial longitudinal shiftable movement. Furthermore in the present invention the body member of the binding post is not exteriorly threaded so as to be held in threaded engagement with the cap, and as a result eflicient operation of the device is permitted and the cost of manufacture is relatively lessened.

Other objects of thisinvention will ap-" pear im the following description thereof,

reference being had to the accompanying drawing forming a part of this specification wherein like reference characters indicate corresponding parts in the several views and wherein Fig. 1 is a side elevation of my improved binding post.- Fig. '2 is a similar view, parts being shown in section; Fig. 3 is a vertical section of the binding post; Fig. 4 is an end view of the'body member; Fig. 5 is a perspective view thereof; and Fig. 6 is a pers ective view of the clamping or gripping sli e.

The present improved binding post comprises in generalva body member having a channel slot or recess adapted to receive for shiftable movement a clamping slide, the slide having threaded portions cooperating with an internally'threaded portion of a cap or sleeve mounted over the body member. The construction is sueh'that upon rotation of the cap the slide member will be reciprocated relatively thereto and without any 1922. Serial no. 558,013.

substantial- -shiftable movement of the cap.

In the present instance the body membercomprises a main portion 9 and a shank 10 preferably of less-diameter extending therer from and slotted to form a channel or guideway v11 of any suitable depth and width.

Freely carried in this channel or slot' 11 for.

shiftable or reciprocatory movement ,is' a sllde member or gripping device12 having the end faces 12 thereof preferably curve or segmental in shape, the upper end faces 13 being screw-threaded. The non-threaded portion of theslide has, in the. present instance, the same width as the diameter of the portion 10, the threaded portion however having'a greater diameter.

A- cap 14 is mounted over the upper end of the body member and is internally threaded at 15 so as to cooperate. with the threaded portions 13 of'the slide 12. The lower annular portion 16 of thewcap projects, below the threads only a sulficient distance to permit the proper operation of the device and to permit the lowered e of the cap to be bent or crimped inwar ly over an annular rib 18 formed on the body member. As a result of this construction the cap 14 is firmly held in position and is prevented from being removed. It will be noted that the bifurcated ends of the shank portion 10 v extend substantially to the to of the cap and hence the cap is prevente A from shifting in one direction by engagement of the ends 20 against the top portion 19 of the cap. Hence it will be seen that the cap may be freely rotated in either directionv but is 1 held from shiftable or reeiproeatory movement. a

In operation it is merely necessa to rotate the cap 14: upon the body inem r and by virtue of the threads 15 of the slide 12 engaging the internal threads of the cap, the

slide member will be reci rocated in the slot the case. As a result less material is required for the manufacture of the cap. The slide member 12 is not secured or in any way connected to the cap 14 but is adapted to be shifted independently thereof. The base of the binding post is tapped as at 21 so as to permit the same to be secured to any suitable support in the usual manner.

Thus it will be observed that the slide is shifted in both directions by means of the coacting threads on the cap, or sleeve, and the slide, and it is a well lmown fact that a thread action is a most powerful lifting medium and therefore is commonly used in lifting jacks whereby many tons may be easily lifted. 7

Although I have described myinvention in its preferred form it is to be understood that I do not limit In self to the construction herein shown an described except in so far as defined in the claims and embraced within the scope thereof.

I claim as my invention:

1. A binding post having a body provided with a transversely slotte portion, a slide shiftable in the slot thereof, and a rotatable sleeve on said body, said body and sleeve having cooperating means for preventing any other than slight longitudinal movement of the sleeve during the rotation thereof and said sleeve and slide having'cooperating means for reciprocating the slide on the rotation of the sleeve. 7

2. A binding post having a body provided with a transversely slotted portion, an exteriorly threaded slide shiftable in the slot thereof, a'rotatable sleeve on said body and having threads cooperating with the threads of the slide, said body and sleeve having cooperating means for preventing any other than slight longitudinal movement of the sleeve during the rotation thereof, whereby on the rotation of the sleeve the slide will be reciprocated.

3. A binding post having a body provided with a transversely slotted portion, an exteriorly threaded slide shiftable in the slotthereof, and a rotatable cap on said bodyv and having interior threads cooperating.

. with the threads of the slide, said cap overlapping onlythe outer art of the length of the slot, said body an cap havmghcooperat-ing means for preventinganyot er than slight longitudinal movement of the cap during the rotation thereof, whereby on the rotation of the cap in one direction the slide I will be shifted toward the inner end of the ingfree slot. e

4. A binding post ha a body provided with a transversely slotte portion, a slide shiftable in the slot thereof, and a rotatable sleeve on said body overlapping only a part of the length of the slot, w ereby the other part of said slot can receive a wire transversely of the body, said sleeve and body beof cooperating threads and said said sleeve and slide having cooperating means, 7

whereby the slide is reciprocated on the rotation of the sleeve.

5. A binding post having a body provided with a transversely slotted portion, a slide shiftable in the slot thereof, and a rotatable sleeve on said bod overlapping only a part of the length of t e slot, whereby the other part of said slot can receive a wire transversely of the body, said sleeve and slide having cooperating threads, whereby the slide is reciprocated on the rotation of the sleeve.

6. A binding post having a body provided with a transversely slotted portion, a slide shiftable in the slot thereof, and a rotatablea part sleeve on said body overlapping onl of the length of the slot, whereby the other part of said slot can receive. a wire transversely of the body, said sleeve and slide havin A cooperating threads, whereby the slide is reciprocated on the rotation of the.

sleeve and said sleeve and body having coolperating means for preventing any other t an slight longitudinal movement of the sleeve.

.of said slot can receive a wire transversely of the body, said cap having interior threads engaging onl the threads of the slide and said cap and ody having cooperating means for preventing any other than sli ht longitudinal movementof the cap, whereby on the rotation of the cap the slide is reciprocated.

8. A binding post havin a body provided with a transversely slotted portion, an exteriorly threaded slide shiftable infthe slot thereof, and a rotatable cap on said body overlappin only the outer part of the length of t e slot whereby theinner part of said slot can receive a wire transversely of the body, said cap 113% interior threads engaging only the threa of the slot and dy having a rib and said cap having an inturned art thereunder for preventing are any other t an 'sl' htjlongitudin'al move- I ereby on the rotation thereof the slide is reciprocated,

'9. A binding post havin a body provided with a transversely slot portion, a slide shiftable in the slot thereof, and a-rotatable sleeve on said body overlapping only a part of the length of the s'lot,' w ereby the other part of said slot can receive a wire transversely of the body, said sleeve and slide having cooperati threads, whereby the slide is reciprocate sleeve and said sleeve and body having coment of the cap, w

operating means for preventing any other on the rotation of the reciprocating said slide, said sleeve and body having cooperating means for preventing l any-other than slight reciprocatlon oi the sleeve during the rotation thereof.

Signed at Cleveland, Ohio,

this 27th day of April, 1922.

OSCAR A. SMITH. 

